Lagging.



T. N. MANUEL.

LAGGING.

APPLICATION FILED D110. 17, 1906.

9 1 v Patented Apr. 20, 1909.

2 SHEETB BHEET 1.

WITNESSES. 77' WINVENTOR W I M ATTORNEY.

nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn c.

T. N. MANUEL.-

LAGGING.

APPLIOATION FILED DEG.17, 1906.

Patented Apr. 20, 1909.

' 2 SHEETS-SHEET 2.

IHQIIINESSES: WINVENTOR MZW B? I @v ATTORNEY.

UNITED STATES PATENT OFFICE.

THOMAS NahIANUEL, OF MILWAUKEE, WISCONSIN, ASSIGNOR TO ALLIS-OHALMERSCOM- PANY, OF MILWAUKEE, WISCONSIN, A CORPORATION OF NEW JERSEY.

LAeeINc.

Specification of Letters Patent.

Patented April 20, 1909.

Application filed December 17, 1906. Serial No. 348,169.

To all whom it may concern:

Be it known that l, TrioMAs N. hlANUEL, a citizen of the United States,residing at Milwauliec, in the county of iliiilwaulree and State ofisconsin, have invented a certain new and useful Lagging, of which thefollowing is a specification.

This invention relates to lagging for oylinders or other similarobjects, and its object is to provide aneat, cheap arrangement of partswhereby the lagging may be readily secured to the object with theminimum expense for fitting and securing it in place.

In the drawings which accompany this specification and form a partthereof and on which the same reference characters refer to the sameelements wherever they ap ear in each of the severa figures and wineillustrate an embodiment of this invention as applied to a Corliss typeof steam cylinder,

rigurc 1 represents a perspective view of a cylinder of the typedescribed with the new and improved lagging secured thereto, thecylinder being ready for the receptionof the various parts which arecommonly secured thereto. Fig. 2 represents a perspective view of thesame cylinder with the parts commonly secured thereto in position. Fig.3 represents a vertical transverse section of the cylinder. Fig. 4represents a perspective of a fragment of the lagging as it would appearif assembled without the cylinder. Fig. 5 represents a perspective viewof a fragment of the band member 5 and Fig. 6 rep resents a view of thelagging provided with a reinforcing piece.

In machine shop practice it is customary to provide the cylinders ofsteam engines and similar apparatus with a cover which serves in somecases merely an ornamental purpose, and in other cases serves to retainheat insulating substance in contact with the object to which thelagging is applied.

If it were commercially practicable in the ordinary manipulations ofmachine shop work to machine the parts accurately to standard gage,lagging could be prepared according to standard and specification whichcould be accurately assembled with the object in connection with whichit is to be used. As, however, in ordinary machine work it is necessaryto keep down cost by performing th e machine work within the limits ofaccuracy that are tolerable for the work in hand, it has been foundimpossible as a practical proposition to prepare lagging which can beassembled with the object which it is to cover without having recourseto a great deal of hand fitting, especially is this the case in enginecylinders of the class illustrated in which considerable time isrequired to fit the lagging of ordinary forms around the bonnets, etc.of the cylinder.

t was formerly the'custom to use an angle iron at the meeting edges ofthe lagging and inside the lagging to which the edges of the laggingwere secured and then to fasten upon the outside of the lagging a bandmember or covering strip to conceal the joint thus made. l' ith thisconstruction where the angle iron was bent around the bonnets, one webof the iron had to be removed at each bonnet which required a largeamount of hand work at the vise to secure a proper fit and to make areasonably good piece of work.

It is the object of this invention to reduce the labor incident tolagging a cylinder or other body to the minimum, and to accomplish this,provision is made whereby the separate sheets forming the lagging may bereadily marked oflhcut and shaped, placed in position and a bindingmember applied which firmly binds the sheets together and preferablyalso to the cylinder or other body to be covered.

Referring to the drawings, 1 designates the barrel of a cylinder of aCorliss engine of usual form 2 the valvebearing parts; 3 the base; 4 thesteam pipe boss; 5 the bonnet bosses 6 the seat for the Wrist platebracket 7 the cylinder head boss to which are secured respectively thesteam pipe 8, the bonnets 9, wrist platebracket 10, cylinder head 11 andthe plates 12.

The sheet of lagging 13 is cut to extend a trifle beyond the square ofthe cylinder on the top and ends, as clearly shown by Figs. 3, l and 6of the drawings, and a similar plate is cut to fit upon the oppositeside of the cylinder or other body and to project beyond the squarethereof, in the same manner as the first plate, as clearly shown by Fig.3 of the drawings. These plates are then apertured to aline with theports, etc. of the cylinder, for example, and a third sheet 14 is cut ofa Width to fit between said two side plates and to be bent around thecylinder, as shown. The band member 15, which is provided with a groove16, is then bent around so as to conform in shape with the outline ofthe plate 14 with the groove 16 I embracing the projecting edges of theplate 13, one of these band members being provided for each side of thecylinder. 'ihis i band member is preferably formed, as slniwn, T of anelongated fiat rod or plate which can be 5 readily bent to the form ofthe body which it is intended to cover.

Ordinarily it will be found sufiieient to merely screw or othe isesecure this band member to the cash at availa le points where it isclosely adjacent to the 6 rain casting proper, as clearly shown by the17 in Fi s. 1 and In large sized engines in order that there array be notendency for the plates to apart at points where they are not inretained betvv'en the band c.,.-oe"

an ad acent oart oi the castin 31'0"??? I tionai 1; ans r a oe GT1 no iin the new J I 1 I of IGlHlOZGlHg n es, such, lor instance, as

ilnstrated by 6, in which the numeral 18 designates a iece ol is nonsecured to the plate 13 h rivets or screws 19 and to which the has rscrews or the li.=-;e 2 1). 'ilhat I claim is,-

1. In a steam engine, the con'ibination with a member having parts dIIGSBLi. at an angle each with respect to the ot sheet of laggingadanted to cover i said member, said sheet of the same general s 'ln.ension as said part of said member, a second sh of lagging of greaterdimension than an adjacei part of said member including the thick ofsaid first mentioned sheet of lag applied thereto so that its ed e proects yond said iii-st mentioned sheet, a strip provided 1th a groove adaseated against said mentions lagging with the projecting edge of saidsecond sheet of lagging received within groove therein, and means forsecuring s binding strip to said member.

2. In a steam engine, the conibinatirm with a member having parts dissee angle each with respect to the other, of a sheet i lagging adaptedto cover a said member, said sheet of lagging b the same general surfacedimension as said part of said ember, a second sheet of lagging ofgreater dimension than an adjacent part of said member including thethickness of said first mentioned sheet ofl applied thereto so that edgeyond said first mentioned sheet, a binding strip provided with a grooveadapted to be seated against said first mentioned sheet of lagging withthe projecting edge of said sec- 5 i is secured b meet at n 1 ,3, i W'sshields sti .1

w arcel-s w nen 4 0nd sheet of lagging received within the groovetherein, means for securing said binding s rip to said member, andadditional means for securing said sheets together.

3. In a steam engine, the combination with a member having surfacesdisposed in different planes, two of which surfaces meet at an angle, ofsheets of lagging adapted to cover some of said surfaces, said sheets oflagging each being of the same -eral surface dimension as the part ofsaid member which said sheet of lagging is lesigned to cover, andanother sheet of la j'g'ing of greater dimension than the part of thesurface of said member which it is de signed to cover in ding theth'chness of sheets of lagging :-lied to adjacent sit-.1- faces so thatedge projects beyond said sheets, and a binding strip provided with agroove ad,:ted YVHIYB said projecting edge, s id binding strip beingadapted to be se d to said member.

e. in a steam engine, the combination with a member having surfaces twoof which ht angles to each other, of sheets oi lag ior coverlng saidmember two of "which eat at right angles to each other, 0 sheets beingplane and nding slightly beyond l two sheets, a llat a groove formed ina the extending edge 01 ide thereof re I "lane sheet and said stripbeing bent 111 no of said plane sheet to conform to 0 he in contact withthe edge of the sinnarly sna ed other sheet, and fastening l I nsans iorholding said strip 111 place.

i. in a steam engine, the combination wit 7 a m mber ha ng surfaces twoof which meet at 'nt angles to each other, ol' sheets oi la 1g forcovering said member two oi sheets also meet at right angles to eachother, one ol said we sheets being plane and having an conforming inshape to and extending slightly beyond an edge of the other oi said twosheets, a flat binding strip ied in a side thereof ret. Y edge of saidplane sheet and i to by bending in the said groove and sheet, and meansing said strip in Contact with the aid adjacent other sheet. ionywhereof, I aiiix my signature ienee of two witnesses.

